I got to spend some time playing around with the Thunderbolt at the trade show. Here are a few first impressions, broken down by category:

Screen

It’s been a big year for big screens at CES, and the Thunderbolt doesn’t stray far from what’s been debuting. At 4.3 inches, it’s a sizable display equal to that of Motorola’s new Droid Bionic, last summer’s EVO 4G and the Thunderbolt’s sister product that debuted alongside it: the AT&T-carried Inspire.

All the advantages of such a large screen come through when using the back-facing 8-megapixel camera. It’s got a nice array of filters to tweak your photos, including the “vintage warm” filter (aka the Instagram effect). And sadly, I didn’t have anyone to video-chat with, but it’s nice to know I can, with the 1.3-megapixel front facing camera.

The haptic feedback on the Thunderbolt’s capacitive touchscreen is a nice touch, but I had a bit of difficulty with pressure sensitivity when trying to scroll through menu screens. On occasion I’d require a little extra effort to choose a widget. This was not a huge deal, but was still noticeable.

The sausage-fingered shopper need not worry. Where the spaciousness of the screen shines is in typing on the Thunderbolt’s keyboard. It’s easy to compose texts fairly quickly, and I made relatively few errors during test texts.

Browsing and Performance

We’ve been hearing lots about 4G network capability lately, and the Thunderbolt is HTC’s Verizon-carried contender. From the bit I did, the phone’s browsing speed is indeed ample. A quick Google search for Wired.com brought our site up in about five seconds. Scrolling downward on the page was fairly smooth, with only minimal clipping.

Under the hood, the Thunderbolt runs on a 1-GHz Snapdragon processor, with 768 MB of RAM and 8 GB of internal storage. It moved along through the menus speedily, and it pulled up video and pictures without much lag. There’s also a microSD card slot with a 32-GB card included.

Feel

The back of the Thunderbolt has a matte finish to it, somewhat akin to HTC’s unsuccessful Nexus One. With the Thunderbolt’s finish, it doesn’t seem like it would lend itself to slipping from the hand that easily.

The little Google-branded kickstand on the back is a nice flourish, especially when you want to watch video on the phone’s large screen. And the metal finish of the kickstand just looks cool.

Overall, I dug the Thunderbolt well enough upon first glance. We’ll have to see how it and Verizon’s 4G network perform when the phone is eventually launched.